ISTWCMS-4166: adding template for uw content moderation block

templates/uw-blocks/uw-block-content-moderation.html.twig

+{{ attach_library('uw_custom_blocks/uw_content_moderation') }}
+
+<div class="uw-content-moderation">
+  <div class="uw-content-moderation__wrapper">
+    Revision State: <i> {% if mods.status %} Published {% else %} Unpublished {% endif %} </i><br />
+    Most recent version <i>{{ mods.latest }}</i><br />
+    Actions: <a href="#">{% if mods.status %}Unpublish {% else %}Publish {% endif %} this content</a>
+  </div>
+</div>